From 032db375f481313ad6295524f4f144f2aa070ab9 Mon Sep 17 00:00:00 2001
From: Julien Marrec <julien.marrec@gmail.com>
Date: Mon, 6 Apr 2020 18:16:40 +0200
Subject: [PATCH] patch to support version ranges for MSVC

---
 win32/Makefile.sub | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/win32/Makefile.sub b/win32/Makefile.sub
index beb0783..56c4499 100644
--- a/win32/Makefile.sub
+++ b/win32/Makefile.sub
@@ -534,9 +534,19 @@ $(CONFIG_H): $(MKFILES) $(srcdir)/win32/Makefile.sub $(win_srcdir)/Makefile.sub
 	@$(IFCHANGE) "--timestamp=$(@:/=\)" $(RUBY_CONFIG_H:/=\) <<
 #ifndef $(guard)
 #define $(guard) 1
+!if $(MSC_VER) >= 1920
+#if _MSC_VER < 1920
+#error MSC version unmatch: _MSC_VER: >= 1920 is expected.
+#endif
+!else if $(MSC_VER) >= 1910
+#if _MSC_VER < 1910 || _MSC_VER >= 1920
+#error MSC version unmatch: _MSC_VER: >= 1910 and < 1920 is expected.
+#endif
+!else
 #if _MSC_VER != $(MSC_VER)
 #error MSC version unmatch: _MSC_VER: $(MSC_VER) is expected.
 #endif
+!endif
 #define RUBY_MSVCRT_VERSION $(RT_VER)
 #define STDC_HEADERS 1
 #define HAVE_SYS_TYPES_H 1
-- 
2.21.0.windows.1